Economizer



4 Sheets-Sheet 2 ECONOMIZER WM INVENToRs r J. W. PARKER ET AL Filed July 17, 1926 Sept. 20, 1932.

` Patented Sept. 20, 1932 a.EntreeSTATES PATE'N 'QF-FICE Y JAMES W. PARKER,` orY ARROR TOWNSHIP, WASHTENAW COUNTY,Y MIcHreAN, AND JOHN E. BLACK,V OE VRtrMsON,` NEW JERSEY; SAID BLACK AssIGNoR To THE :BABcocK a wILeoX COMPANY, OE BAYONNE-NEW JER-sEY, A `ooRroRAMON OE NEW "Applieation filed .Tully 17,1926.` Serial No. 123,067.

This invention relates to Van economizer v that may be located- 'above a steam boiler `and will occupy a small-space and, atV the samer time, the waste gases andi water to be heated will pass in countercurrent directions v through the economizer.l v The invention will be'understood from thev description in con= nectionwith the accompanying drawings, in

' which Fig. -1 is a vertical section through an illustrative embodiment of the invention;

f'Fig. 2 is a section along` theline 2-'-2 o-Fig. Y 3; Fig. .3 is a side elevation of the deviceand L Fig. 4 is ka section along the line 4-4 of Fig.

f Stirling type, in which reference character' 3. The invention is illustrated intconnection with theupper-portion of'a boiler of the indicates lthe steam and water drums and 6 indicates tubes 'connecting'the drums. Grasesv `from a furnace (not 'shown)'pass. over the tubesrof the boilerinthe usual manner, lbe-` coming'cooled thereby to a "certain extent,

and then the waste' gases'pass through c'on' duits?? on opposite sides of the 'boilerup wardly over Awalls or baffles 8, each Vof kwhich I'forms a sidev of achannel in which water tubes 'of the economizer are located. The

walls '9v or'other sides ofthe channels into which the waste gases enter extend downwardly, and hoppers '10 are located below the same, and are providedV with openings 11- .through which soot that has collected in the hoppers may be removed. The hoppers 10 open into adjacent channels, one of the sides of which is formed by the walls 9, these channels being separatedy by the middle wall 12,

and opening into flues or stacks 13 (Fig. The channels between the walls 8 and 9 o' through whiehthe waste gases pass down* wardly, and also the channels between the walls 9 and 12 through which the gases pass upwardly are provided with vertical rows lof headers that areconnected by tubes extend-1 The inner headers being an inlet header for the cold water. Corresponding rows of headers 2lV are disposed along the other side of these channels, and tubes 22 extending transversely EGONOMIZE'R.

vvalong the channels and sloping slightly, as

shown in Fig. 3, connect the headers. A header 21 on each side of thewall 12 lat the bottom .of the rows is vsufficiently long ,to extend across a gas channel between the walls 9V and 12 and the walls 8 and 9. These headers may be provided with'drain pipes 21 and the headers serve'to' lead the water from the gas channels between the walls 9 and tothe gas channels between the walls 8 and V9. Vertical rows ofV headersir23 are installed above one Vanother along the sides of the channels between the walls 8 and 9, and are connected to similar rows of headers 24'alon the'other side of thel'channels by'rneans transversely extending tubes v25. 'The -topmost headers 24 ofthe rows `24 are the 'outlet headers for the hot water, and these headers may be provided with outlets 26 for the hetv water, as well as water relief valves 27o? the well-known sort.r i I v In the operation of the'device, waste-gases from the boiler 4pass through the conduit 7 -into the upper portion of the economizer downwardly across the tubes 25,'through the hoppers 10 and upwardly across the tubes 22 into the outlets 13.V At the same time, cold water is introduced through the Vheaders. 20,

passes through tubes 22 and the rows of head ers along the sidesof the v'economizer through the long headers 21, tubes 25 and rows of headers 23 and 24,'and fin allyfthrough the outlets 26.` "Thefwater and hotgases are'thus caused toilow through the economizer in.

countercurrent directions'a'nd, at the same tin1e,avery compact economizer is provided.-

' Werclaim: 1 y n 1. In'conibi'natiom'al boiler,l an outlet flue for `the gases, an inner and-'an outer set of chan?,

nels located side by sideand above said boiler, luidheaters located vin the respective sets of 1 channels, thechann'els of one set communicatingat one end with-said outlet flue and at their otherends-with the respective' channels of v the other set, and conduits extending upwardl ly from opposite sides of said boiler along the ko uter sides of said channels for conducting `gases from the boiler to the .opposite endsof the last named channels. Y l l2'. In eoinbination,A a boiler, anoutlet flue for the gases, two pairs of vertically disposed channels each pair comprising an inner and an outer channel and the channels of each pair being located side by side and above said boiler, economizers located in the respective pairs of channels, theinner channels communicating at one end with `said outlet ue A and at theirother ends with the other channels of the respective pairs, and conduits ex- 1410. tending upwardly from opposite sides of said boiler along the outer sides of'said channels for conducting gases from the boiler to the opposite ends of the last-named channels.

3. In combination, a boiler, an outlet flue .15 for the gases disposed above said boiler, two

pairs of vertically disposed channels,'each pair comprising an inner and an outer channel and the channels of each pair being lo- V cated side by side and above said boiler, econ- 20 omizers located 1n the respective pairsV of nel and the channels of each pair being lo-` ,cated side by sidey and above said boiler, economizerslocated 1n the respective pairs of channels, the inner channels communicating at one end with said outlet iue and at their other ends with the other channels of the respective pairs, and conduits extending along the outer sides o-said channels for v conducting gases to the other ends of the last-named channels and Vconnections providing for 'the flow of water through the tubes of theV economizers countercurrent `to the gases.- n v 5v. In combination, a boiler, an outlet vflue for the gases disposed above the boiler, two pairs of vertically disposed channels, each pair comprising inner and outer'channels, the channels of the respective pairs beinglocated side by side and above said boiler, economizers upwardly 'from opposite sides of said boilerV pairs of vertically disposed channels,each pair comprising inner and outer channels, the channels of the respective pairs being located side by side and above said boiler, economizers loca-ted in the respective pairs of channels, each economizer comprising headers, tubes connecting the headers and extending transversely across said channels, the inner channels communicating atjo'neendiwithsaid outlet flue and at their other ends with the ends of the other 'channels of the respective pairs, and conduits extending upwardly from opposite sides of said boiler along the outer sides ofsaid ychannels for conducting gases to the upper ends of the last-named channels, and connections providing yfor the flow of water through thetubes of the economizers in a direction generally counter to the flow of gasesithereover. 7. In combination, a boiler, an outlet ue :for the gases disposedabove the boiler, .two pairs of vertically disposed, channelsyeach pair comprising inner and outer channels, the channels'ov the respectivepairsbeing locatedV side by` side and above said boiler, economizers'located -in the respective pairs Vof channels, leach economizer vcomprising headers, tubes. connecting theheadersand extending transversely across said channels,

the inner channels communicating at one. end with said outletiiue andat theirV other ends with `the ends of the Vother channels of-the respective pai-rs, and conduitsv extending {upwardly from,oppositesidesvo said boiler Y along the outer sides of said channels for coninner and outer channel and affording com- ,105

munication between the portions ofthef'econoymiser located in the channelsnofa given pair. i

JAMES W. PARKER. vJOHN E. BLACK. Y Y ne located inthe respective pairs of channels,

each economizer comprisingY headers, tubes 55,7connecting the Vheaders and extending transversely across said channels, each of the inner channels communicating at one end with said outlet flue and at its other end with one end of the other channel of the respective pair, and Y 60 conduits extending upwardly from opposite n sides of said boileralong the outer sides of c said channels for conducting gases to the .1 other end of each of the outer channels.

6. In combination, aboiler, an outletlue 55 for lthe gases disposed above the boiler, two 

